Title :
640-Gb/s OTDM signal measurement with high-resolution optical sampling system using wavelength-tunable soliton pulses
Author :
Yamada, Nobuhide ; Nogiwa, Seiji ; Ohta, Hiroshi
Author_Institution :
R&D Commun. Technol. Center, Yokogawa Electr. Corp., Kanagawa, Japan
fDate :
4/1/2004 12:00:00 AM
Abstract :
We have demonstrated an optical sampling system using wavelength-tunable soliton pulses produced by a highly nonlinear polarization-maintaining (PM) fiber. We successfully observed a 640-Gb/s optical signal with the system. The wavelength of the sampling pulses was shifted to 1736 nm by employing a 40-m-long PM fiber, and the sampling pulsewidth was 210 fs. The system achieved high temporal resolution of 280 fs and high sensitivity by employing a 2-mm-thick periodically poled LiNbO3 crystal. The system jitter was estimated to be 80 fs.
Keywords :
high-speed optical techniques; jitter; lithium compounds; optical communication equipment; optical fibre communication; optical fibre polarisation; optical materials; optical solitons; optical tuning; optical variables measurement; signal sampling; time division multiplexing; 1736 nm; 2 mm; 2-mm-thick periodically poled LiNbO3 crystal; 210 fs; 280 fs; 40 m; 40-m-long PM fiber; 640 Gbit/s; 640-Gb/s OTDM signal measurement; 640-Gb/s optical signal; 80 fs; LiNbO3; high-resolution optical sampling system; highly nonlinear polarization-maintaining fiber; sampling pulsewidth; system jitter; temporal resolution; wavelength-tunable soliton pulses; Fiber nonlinear optics; Nonlinear optics; Optical fiber polarization; Optical pulses; Optical sensors; Optical solitons; Pulse measurements; Sampling methods; Space vector pulse width modulation; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.824956
